CN107003330A - The manufacture method of sample nozzle, the automatic analysing apparatus using the sample nozzle and sample nozzle - Google Patents

The manufacture method of sample nozzle, the automatic analysing apparatus using the sample nozzle and sample nozzle Download PDF

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Publication number
CN107003330A
CN107003330A CN201580066429.3A CN201580066429A CN107003330A CN 107003330 A CN107003330 A CN 107003330A CN 201580066429 A CN201580066429 A CN 201580066429A CN 107003330 A CN107003330 A CN 107003330A
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CN
China
Prior art keywords
mentioned
rubber
nozzle
sample
cts
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Granted
Application number
CN201580066429.3A
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Chinese (zh)
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CN107003330B (en
Inventor
堀江阳介
井上智博
时枝仁
森高通
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Hitachi Ltd
Hitachi High Tech Corp
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Hitachi Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1079Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices with means for piercing stoppers or septums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02Burettes; Pipettes
    • B01L3/0289Apparatus for withdrawing or distributing predetermined quantities of fluid
    • B01L3/0293Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids
    • B01L3/0296Apparatus for withdrawing or distributing predetermined quantities of fluid for liquids from piercable tubing, e.g. in extracorporeal blood sampling
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00Additional constructional details
    • B01L2300/06Auxiliary integrated devices, integrated components
    • B01L2300/0672Integrated piercing tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02Burettes; Pipettes
    • B01L3/0241Drop counters; Drop formers
    • B01L3/0244Drop counters; Drop formers using pins
    • B01L3/0255Drop counters; Drop formers using pins characterized by the form or material of the pin tip
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082Test tubes per se
    • B01L3/50825Closing or opening means, corks, bungs
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00178Special arrangements of analysers
    • G01N2035/00277Special precautions to avoid contamination (e.g. enclosures, glove- boxes, sealed sample carriers, disposal of contaminated material)
    • G01N2035/00287Special precautions to avoid contamination (e.g. enclosures, glove- boxes, sealed sample carriers, disposal of contaminated material) movable lid/cover for sample or reaction tubes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04Details of the conveyor system
    • G01N2035/0401Sample carriers, cuvettes or reaction vessels
    • G01N2035/0403Sample carriers with closing or sealing means

Abstract

The present invention provides a kind of CTS nozzles, and it reduces the chip of the rubber produced when rubber bolt is plugged, and suppresses the abrasion of CTS spray nozzle front ends, withstands use repeatedly.In the present invention, by setting the cutting face on two sides in spray nozzle front end portion, the pressure being subject to when inserting the nozzle into rubber bolt from rubber will not deflecting nozzle side cut surface, be dispersed in the two sides of nozzle.Bent in addition, having as the front tapering of a side in the cutting face on two sides, i.e. the second face in the local position of spray nozzle front end to columnar circumferencial direction and relative to the length direction point-blank inclined curved surface of nozzle.Therefore, the pressure dissipation that nozzle is subject to by the recuperability of the rubber of nozzle pressing, the oblique cutting that can stably suppress nozzle enters and easily presses the rubber after cut-out, can reduce the chip of the rubber produced by the friction of the cut surface and rubber of nozzle.In addition, by reducing the friction with rubber, suppressing the abrasion in spray nozzle front end portion, the life-span of nozzle can be extended.

Description

The system of sample nozzle, the automatic analysing apparatus using the sample nozzle and sample nozzle Make method
Technical field
The present invention relates to carrying out the automatic analysing apparatus of constituent analysis by making the samples such as serum, urine be mixed with reagent In, from the sample nozzle for the sample for attracting inside by the sealed sample container insertion rubber bolt of rubber bolt.
Background technology
Load the container of the samples such as blood to prevent deterioration, the liquid leakage of sample, entered using the bolt seal formed by rubber etc. And use.Using this sample container automatic analysing apparatus in, with can closing with opening bolt without sample container Dispensing sample and CTS (Closed Tube Sampling) the corresponding device analyzed in the state of bolt.CTS is corresponding automatic point Analysis apparatus possesses in order to which full thickness has (the also referred to as CTS sprays later of the sharp keen nozzle in front end for 6mm or so rubber bolt Mouth) dispensing mechanism, using CTS nozzle insertion bolts and attract sample in container.General CTS nozzles pass through such as patent document 1 sideling sets the one side of the front end of the metal tube with hollow bulb and makes leading section sharp keen like that.
In addition, in CTS nozzles, also having as patent document 2, patent document 3 in the leading section of hollow metal pipe With knife as pin and will carry out sample attraction opening portion as the type of the side of nozzle nozzle.
On the other hand, as described in Patent Document 4, also different from nozzle it is used to make the perforation of rubber bolt opening with possessing Pin, makes the opening portion for the rubber bolt that nozzle expanded by pecker attract the method for sample.
Prior art literature
Patent document
Patent document 1:Japanese Kohyo 7-506668 publications
Patent document 2:Japanese Unexamined Patent Publication 2010-25804 publications
Patent document 3:Japanese Unexamined Patent Publication 2014-66706 publications
Patent document 4:No. 3180120 publications of Japanese Utility Model Registration Section No.
The content of the invention
Invent problem to be solved
It is the structure that can ensure that dispensing precision in so-called CTS nozzles, and considers that following two key elements are important 's.First is that can reduce the structure of the chip of rubber produced when CTS nozzles are inserted into rubber bolt.Second is nozzle Long lifespan.
For example, the sample inside the rubber bolt and dispensing for utilizing CTS nozzle insertion sample containers as described in Patent Document 1 CTS in, sometimes when CTS nozzles are plugged in rubber bolt produce rubber chip.If the cutting of rubber is attached to from rubber The CTS nozzles of bolt drawing, then in nozzle movement, drain sample etc., chip is dropped on device.If the chip fallen is due to mixed Together in sample in reaction box etc. then sometimes on checking that precision brings influence, therefore be not preferred.Further, since dropping to In the case of beyond reaction box also can polluting device, therefore, it is desirable to reduce the chip of rubber produced when plugging CT S nozzles.
It is because not considering circular cone the reasons why the chip for producing rubber as easy in the CTS nozzles of patent document 1 The structure of shape coning angle 16 and cutting angle 18 evenly by CTS nozzles insert rubber bolt when face from load to the side of cutting angle 18 Deviate.Therefore, it is applied with the rubber pressure of deviation cutting angle 18 side.Due to the rubber pressure of deviation, the friction of rubber and nozzle Power is big in insertion time-varying, as a result, rubber is easily cut and produced the chip of rubber.Accordingly, there exist the structure of patent document 1 Nozzle be easier produce chip structure problem, the problem of the chip of rubber is not considered.
In addition, the CTS nozzles of automatic analysing apparatus are by the inside of washer jet, outside and Reusability after dispensing, Sometimes thousands of samples can be handled within one day.In addition, in order to checking that the increase of number of packages is corresponding, it is necessary to make nozzle at high speed in rubber bolt Middle plug, the front end of nozzle is gradually worn away, and cuts the performance degradation of rubber bolt.Therefore, it is desirable to the abrasion hardly possible of the front end of nozzle The nozzle of structure.
On the other hand, in the nozzle that front end as patent document 2,3 is aciculiform shape, because suction port is located at side, Therefore, when discharging attracted sample, the liquid of cutting that there is sample is deteriorated (deterioration of dispensing precision), easily produces nozzle interior Other unequal essential problems of cleaning.
Especially in patent document 3, disclose in the way of power composition cancels each other in the region of front end 8 along radial direction Selection is tilted and area.It is the balance for the structure for considering nozzle and the knot of the minimizing effect of frictional force to a certain degree can be expected Structure.But, face 26 is not configured at pin front end, does not consider the balance in the structure of pin front end completely.Completely not in local pin In the case that front end suitably carries out the load of power, as the result for the deviation for somewhat producing power, hour hands are being inserted somewhat It is inserted obliquely into.As the result, compared with situation about being perpendicularly inserted, the abrasion of spray nozzle front end are easily produced.Such case Due to the position that the frictional force for producing rubber and nozzle is larger, therefore also result in the chip for easily producing rubber.
In patent document 4, because needs are for making the special pin of rubber bolt opening, for being driven above and below pin progress Dynamic mechanism, therefore device is complicated and increase cost.
The structure of dispensing precision is can ensure that, can fully meet and can reduce rubber as described above, CTS nozzles before are not the discovery that The nozzle of the structure of the chip of glue and the life-span of nozzle long both sides.Also, to the nozzle of rubber bolt as in the future Insertion speed high speed due to making these problems significantly change, therefore, inventor is considered while solving these problems.Invention People conscientiously studies the result of effort, realizes the CTS nozzles of structure disclosed in inventive embodiments.
Therefore, it is an object of the invention to provide resistance in Reusability and the few CTS nozzles of chip.
Method for solving problem
The structure for listing the representative of the present invention is as described below.
In the columnar sample nozzle of sample of the present invention inside sampling container of the insertion with rubber attracts, possesses bag Include the opening portion for attracting sample and above-mentioned sample nozzle length direction extend hollow bulb, positioned at be configured with it is above-mentioned in The end of the pipe in empty portion and the first face with the plane for surrounding above-mentioned opening portion, positioned at above-mentioned first face opposite direction the The leading section for the above-mentioned sample nozzle that two faces and intersection by above-mentioned first face and above-mentioned second face are formed, above-mentioned hollow bulb exists Do not bent near above-mentioned leading section, including above-mentioned opening portion, above-mentioned second bends towards above-mentioned columnar circumferencial direction, has Relative to above-mentioned length direction point-blank inclined curved surface, the end of the root side of the above-mentioned sample nozzle in above-mentioned second face with it is above-mentioned The distance of leading section is shorter than the distance of the end and above-mentioned leading section of the root side of the above-mentioned sample nozzle in above-mentioned first face.
In the sample nozzle (CTS nozzles) of the present invention, by being set in the spray nozzle front end portion as real true front end The cutting face (hereinafter also referred to section, face) on two sides, the pressure being subject to when inserting the nozzle into rubber bolt from rubber (press by nozzle It is pressed in the power on rubber) do not deviate to the one side of nozzle, disperse on the two sides (the first face and the second face) of nozzle.By from rubber The pressure dissipation being subject to, the power that the cutting face of nozzle is pressed against on rubber diminishes, and can reduce the cutting face due to nozzle and rubber The friction of glue and the generation of the chip of rubber produced.In addition, being reduced by the friction with rubber, suppress the mill in spray nozzle front end portion Consumption.
In addition, in a manufacturing method, the present invention has following processes:(a) prepare with extending in the longitudinal direction The process of the pipe in empty portion;(b) process for forming curved surface, the curved surface is the curved surface that axle is compareed on the axle of above-mentioned pipe, is not made above-mentioned Hollow bulb is bent, and is bent in the front end of above-mentioned pipe to above-mentioned columnar circumferencial direction, relative to above-mentioned length direction point-blank Tilt;(c) point on by above-mentioned curved surface and plane of the position by the point of the root side of above-mentioned pipe than being configured with above-mentioned curved surface Point-blank it is processed, surrounds the face of above-mentioned hollow bulb, and before above-mentioned sample nozzle is formed with the intersection of above-mentioned curved surface The process of end.
As described above, can be by being set in spray nozzle front end portion equivalent to above-mentioned first face and the cutting face on the two sides in the second face Suppress the chip of generation rubber, extend the life-span of the cut surface of the nozzle worn away due to the friction of rubber.
Invention effect
According to the present invention, with insertion rubber bolt and directly attract inside sample the corresponding automatic analysing apparatus of CTS In, the chip of the rubber produced when making CTS nozzles be plugged in rubber bolt can be reduced, extends nozzle life.
Brief description of the drawings
Fig. 1 is the top view of the automatic analysing apparatus for closing the direct dispensing of bolt container from the present invention.
Fig. 2 is the sectional view and outside drawing of the leading section of general CTS nozzles.
Fig. 3 is sectional view when general CTS nozzles to be inserted to rubber bolt.
Fig. 4 is the sectional view and outside drawing of the leading section of general CTS nozzles.
Fig. 5 is one of the shape of the CTS nozzles of the present invention.
Fig. 6 is one of the shape of the CTS nozzles of the present invention.
Fig. 7 is the sectional view when CTS nozzles of the present invention to be inserted to rubber bolt.
Fig. 8 is the figure of the definition of the angle for the cutting portion for representing the CTS nozzles of the present invention.
Fig. 9 is one of the manufacturing sequence of the CTS nozzles of the present invention.
Embodiment
Below, embodiments of the present invention are explained referring to figs. 1 to Fig. 9.
Fig. 1 is the figure for the structure for representing automatic analysis apparatus of the present invention.Automatic analysing apparatus 10 is by carrying multiple reagents The reagent disc 12 of container 11, the reaction tray 13 for making reagent and sample mixed and determining reaction, the attraction for carrying out reagent, the examination of discharge Agent with dispensing mechanism 14, carry out sample attraction, discharge sample dispensing mechanism 15 constitute.Reagent dispensing mechanism 14 possesses examination The reagent of agent dispensing nozzle 21, sample dispensing mechanism 15 possesses the CTS nozzles 22 of sample dispensing.The sample of feeding device It is mounted on frame 25 and is handled upside down in the state of the sample container (developmental tube) 24 that bolt is closed by rubber bolt 23 is enclosed.In frame 25 It is upper to carry multiple sample containers 24.In addition, sample is sample or urine etc. derived from the blood such as serum, whole blood.
Sample dispensing mechanism 15 makes CTS nozzles 22 to carrying out the attraction position of sample attraction from sample container 24, to box 28 The cleaning positions movement of the drain position discharged and the rinse bath 20 of the front end with cleaning CTS nozzles 22.In addition, examination Sample dispensing mechanism 15 attract position, drain position and cleaning positions and sample container 24, reaction box 13, rinse bath 20 it is each From height correspondingly decline CTS nozzles 22.In the down maneuver of sample container 24, hold the insertion sample of CTS nozzles 22 The rubber bolt 23 of device 24, makes the front end of CTS nozzles 22 enter the sample being located in sample container 24 and carry out sample attraction.As above institute State, due to not removing the ground of rubber bolt 23 using the insertion rubber bolt 23 of CTS nozzles 22 and directly carrying out dispensing, therefore, CTS nozzles 22 For insertion rubber bolt 23, front end is sharp for leading section.
In order to carry out action as the above, sample dispensing mechanism 15 is that CTS nozzles 22 can be made mobile up and down Structure.In addition, CTS nozzles 22 are cleaned in dispensing after one sample, other examinations of identical CTS nozzles 22 dispensings are utilized Sample.So, CTS nozzles 22 are repeatedly used for dispensing.
Carrying out after sample attracts, to the drain sample of box 28, by optically determining sample and reagent in box 28 Mixed liquor, can calculate concentration of predetermined composition contained by sample etc..On automatic analysing apparatus analysis be in detail it is known, Therefore detailed description in this is omitted.
Fig. 2 be the leading section of general CTS nozzles sectional view (a) and one of outside drawing (b).General CTS nozzles 200 are formed by the metal pipe of inner hollow, have cut surface 201 by sideling cutting fore-end, front end becomes sharp Profit.In the leading section of CTS nozzles 200, there is elliptoid opening portion 202 by front cutting, tried from opening portion 202 Attraction, the discharge of sample.In addition, have the part (not shown) that be connected with pipe arrangement in the root side of CTS nozzles 200, hollow bulb 203 and The pipe arrangement connection filled by water, and the connection pump (not shown) on pipe arrangement.Pressure in the hollow bulb 203 of CTS nozzles 200 can Changed by the action of pump, therefore, attraction, the discharge of sample are carried out using CTS nozzles 200.
As described above, nozzle repeatedly insertion rubber bolt and use, therefore, if the leading section 204 of CTS nozzles 200 is excessively sharp Profit, then wall thickness is thin and easily make a mess of.Therefore, wall thickness to a certain degree is needed in leading section 204, be especially mounted at high speed repeatedly It is not sharp keen angle if inserting the front end of the CTS nozzles of the device of rubber bolt 23 compared with only expendable injection needle.
Fig. 3 is sectional view when general CTS nozzles 200 to be inserted to rubber bolt 23.Cut the leading section 204 of CTS nozzles 200 Disconnected rubber bolt 23, the cut surface 201 sideling cut presses rubber, while push the cut-off parts of rubber bolt 23 open, CTS nozzles 200 one side pass through in rubber.The rubber that cut surface 201 is pressed applies rubber by the recuperability of rubber to cut surface 201 Pressure.But, CTS nozzles 200 are located at side due to cut surface 201, therefore, and the deformation of rubber is big in the side of cut surface 201, from The side of cut surface 201 for the pressure deviation CTS nozzles 200 that rubber is subject to.Therefore, in the section and cut surface 201 of rubber bolt 23 Between produce larger frictional force.In addition, generally, the cut surface 201 of CTS nozzles 200 is cut off by laser machine etc., but with The side of CTS nozzles 200 is compared, rough surface, due to the friction with rubber bolt 23, easily produces the chip of rubber.In addition, by In frictional force as described above, CTS nozzles 200 have the tendency being inserted obliquely into relative to rubber.
Fig. 4 is the example of the CTS nozzles 400 different from Fig. 3 (CTS nozzles 200).For example, as described in Patent Document 1, being Nozzle (taper obtained by the coniform taper angle 16 of patent document 1) provided with coniform taper.Figure is CTS nozzles respectively Leading section sectional view (a), from side from outside drawing (b), outside drawing (c) and stereogram from opening portion (d)。
CTS nozzles 400 internally set taper 401 for the leading section of hollow metal pipe, and by sideling cutting Disconnected front end and with cut surface 402, front end 403 is sharp keen.By setting taper 401 in leading section, when can reduce by rubber Load, if but taper length is shorter, due to nozzle insertion, rubber produces change drastically, applies stronger rubber on nozzle Glue laminated power and produce insertion load increase and rubber chip.Therefore, it is necessary to make cone in shape as CTS nozzles 400 Degree end 404 at least reduces as than coning angle of the front cutting end 405 by the position of the root side of nozzle.But, reducing cone angle When long (increase cone), the front ends of CTS nozzles 400 due to identical with CTS200, the side of cut surface 402 of rubber deflecting nozzle, So as to produce chip.In addition, CTS nozzles 400 integrally have taper 401 in leading section, therefore the wall thickness of front end is thin on the whole, Easily made a mess of in use repeatedly.
Fig. 5 is one of the CTS nozzle forms of the present invention.The external diameter φ of the root side line part 501 of CTS nozzles 22 is 1.6mm, the external diameter φ of front line part 502 (3.5mm from the front end) is 0.8mm, line part 501 and front straight line in root side There is middle tapering 503 between portion 502, in addition, there is front tapering 504 than the forward side of front line part 502, Inside has the hollow bulb 505 (Fig. 5 (a)) of straight line.Hollow bulb 505 extends on the length direction of CTS nozzles.In figure, table Show sectional view (b), outside drawing (c), (d).In addition, root side line part 501 is cylindrical shape, front line part 502 is except tapering Position is cylindrical shape.Therefore, the basic shape of sample nozzle is cylindrical shape.Here, in this manual, so-called line part is Refer in its section, the butted line of outer surface and section cylindrical shape substantially parallel to one another.In addition, the hollow bulb of so-called straight line, Refer in its section, hollow bulb is about parallel columnar cavity with the boundary line of the docking of pipe.
In addition, in the root side of CTS nozzles 22, be connected with pipe arrangement identically with general CTS nozzles 200, pass through the dynamic of pump Make to carry out the attraction of sample, discharge.
When CTS nozzles 22 are inserted into rubber bolt 23, as described in the example of the CTS nozzles 200, after deformation The recuperability of rubber is acted on CTS nozzles 22 as pressure.It is equipped with the sample dispensing mechanism 15 of CTS nozzles 22 at high speed CTS nozzles 22 are inserted rubber bolt 23 by (90mm/s~300mm/s), if but tapering 503 length it is shorter, need rubber drastically Deformation, increased by acting on the pressure on CTS nozzles, the increase of load during insertion.Therefore, it is desirable to the length in tapering 503 It is as far as possible long, such as preferably more than 20mm.
In addition, the front end of the CTS nozzles 22 in the present invention, as described above, with front tapering 504, by by front end Distinguish the cutting face in sideling cutting face 508 and front tapering 504, the leading section of CTS nozzles 22 in the front end of line part 502 506 become sharp keen (with reference to (b)).Section 508 is to make opening portion 507 be elliptoid section.Section 508 is located at configuration The end of the pipe of hollow bulb, is the cut surface (the first face) with the plane for surrounding opening portion 507.In addition, front tapering 504 be positioned at the tapering (the second face) of the opposite side of the cut surface.Also, leading section 506 be by section 508 (the first face) and The leading section of the intersecting lens formation in front tapering 504 (the second face).Further, since symbol 508 is the face for specially cutting off pipe, because Referred to herein as section, but be equivalent with cutting face, sometimes also referred to as cutting face.
In addition, hollow bulb 505 includes the opening portion 507 for being used to attract sample, in order to prevent dispensing precision from deteriorating, not preceding End is bent around.
The angle of the leading section 506 of CTS nozzles 22 is by the cut-out angle of section 508 and the angle in front tapering 504 Determine, be desired for 27.5 degree nearby (on the detailed of angle, will be described later).
The section 508 of CTS nozzles 22 is cut off such as the cutting machine as laser machine, but can cutting face calixconcavity 509 form angle.If CTS nozzles 22 are inserted into rubber bolt 23 in the state of having angle in cutting face, the calixconcavity 509 of section is cut Cut rubber and produce the chip of rubber, it is therefore preferable that the processing repaired to the part of the calixconcavity in cutting face (is such as sprayed Paint grinding etc.).
And if preceding when inserting rubber bolt 23 in addition, the calixconcavity 509 of the root side of the opening portion of CTS nozzles 22 is acute angle End 506 is identical, is worked relative to rubber as knife, therefore, and the cut-out of calixconcavity 509 using the root side of CTS nozzles enters CTS Rubber in the opening portion 507 of nozzle 22, blocks the hollow bulb 505 of CTS nozzles 22.Also for preventing the chip of rubber bolt 23 Block, the calixconcavity in the cutting face of preferred pair CTS nozzles 22 carries out finishing processing.
In the present invention, it is characterised by being provided with front tapering 504 (the second face), therefore, this is said using Fig. 6 It is bright.
Fig. 6 is the supplement figure of one of the CTS nozzle forms of the present invention.It is the figure of the CTS nozzles from opening portion 507 (a) with the enlarged drawing (b) of major part stereogram.
First, the fisrt feature of CTS nozzles of the invention is the end of the root side as the cutting face in front tapering 504 Position.As shown in Fig. 5 (a), (b), (d) and Fig. 6 (b), the end, which is positioned at, compares front.Because wall thickness is with the end For border, thinning towards front end, therefore, the end is close to front end.Because the length of the part of wall thickness parts thinner can be short, because This has the advantage that in terms of intensity.Therefore, the structure contributes to the long life of nozzle life.At least the end is than section 508 End close to front be important, be used as the feature in structure, the root of the CTS nozzles in front tapering 504 (the second face) The distance of side end and leading section is shorter than the end of the root side of the CTS nozzles of section 508 (the first face) and the distance of leading section. In addition, the distance mean be not to the distance on inclined face but to axial direction distance be compared.
Then, second feature is, is relative to the columnar circle in the front tapering 504 for forming leading section 506 The curved surface of circumferential direction bending.As shown in Fig. 6 (a), front tapering 504 is curved surface relative to circumferencial direction.Because wall thickness is thin Part is curved surface, therefore, compared with being the situation of plane with front tapering, is the power point for easily making to be subject to from the side of section 508 Dissipate and be difficult to the structure made a mess of.In addition, can by increasing surface area for curved surface, so as to increase the power being subject in curved sides, Appropriate balance is can ensure that in the power for being applied to section 508 and front tapering 504.
In addition, the CTS nozzles 22 of the present invention are curved surfaces due to front tapering 504, therefore, it is possible in CTS nozzles 22 Front end 506 constitutes the wide knife of width.When making 22 insertion rubber bolt 23 of CTS nozzles, the rubber quilt for the part that CTS nozzles 22 pass through Size more than the root diameter (being in the present embodiment 1.6mm) for CTS nozzles 22 is pressed, but it is wide by the width of front end 506, Larger otch is provided with rubber bolt 23, rubber can be pushed open with less.Especially in the shape of CTS nozzles 22 of the invention In, by the part with the external diameter width same widths of line part 502 with the knife as leading section 506, in line part 502 It during by rubber, can be inserted with less power, when the tapering 503 after is by rubber, gently push rubber, last external diameter open Most thick root side line part 501 passes through, and by not pushing rubber open limpingly, can reduce the generation of the chip of rubber.
In addition, third feature is, front tapering 504 is point-blank tilted relative to the length direction of CTS nozzles.As schemed 5 (a), (b), (d) and Fig. 6 (b) are shown, it can be seen that point-blank tilted relative to length direction.Because section 508 is also Relative to length direction point-blank inclined face, therefore can easily make rubber pressure equably disperse and prevent nozzle from sideling inserting Enter.By preventing from sideling inserting, the chip of rubber can be reduced, contributes to the long lifetime of nozzle.If for example, front tapering 504 do not tilt point-blank, then are changed by the angle in the face of rubber pressure according to the depth for inserting the nozzle into rubber, unstable Fixed, accordingly, there exist the tendency that nozzle is somewhat sideling inserted.Especially it is located at just with the suction port of the nozzle same type of the present invention In the structure of lower section, due to by leading section to configuring partially near the wall thickness of nozzle, therefore, with leading section configuration in nozzle The nozzle of patent document 2,3 near the heart is compared, the unstability of the scattered balance of the rubber pressure shortly after insertion rubber The up rightness that nozzle is inserted is brought greater impact.Therefore, front tapering 504 is curved surface and relative relative to circumferencial direction It is important point-blank to be tilted in length direction.
By possessing these three features, in addition to the intensity of CTS nozzles, moreover it is possible to reduce what is produced when being plugged in rubber bolt The chip of rubber, and nozzle life can be extended.
In addition, above-mentioned 3 points be the present invention CTS nozzles feature, but preferably following structure.
First, the inclination angle of section 508 is bigger than the inclination angle in front tapering 504.It is detailed using Fig. 8 on this point Thin narration.
In addition, defining distance 510 from the side of line part 502 to leading section 506 and from the end of hollow bulb 505 to preceding During the distance 511 of end 506, expect to carry out in the mode bigger than distance 511 of distance 510 as the position of the leading section 506 of knife Selection.In other words, when from the side of opening portion 507, leading section 506 is located in the wall thickness range of nozzle, leading section quilt It is positioned at the position close to the side of opening portion 507 than the outside in wall thickness range.It is also aftermentioned to this.
Additionally, it is desirable to ensure the scattered balance of power using the difference of forward end taper 504 and the area of section 508.To this It is aftermentioned.
In addition, as shown in figure 5, possessing root side line part, external diameter the front line part smaller than root side line part and matching somebody with somebody The tapering between root side line part and front line part is put, expects leading section configuration in the front end of front line part.
Additionally, it is desirable to which welding ground is not identical part mutually for root side line part, front line part, tapering, leading section.
Fig. 7 is the sectional view when CTS nozzles of the present invention to be inserted to rubber bolt 23.Inserted by the CTS nozzles 22 of the present invention When entering rubber bolt 23, the cut-out of leading section 506 rubber, by CTS nozzles 22 by and using before front tapering 504 and nozzle The section 508 at end this two towards respective direction press rubber, while pushing cut-off parts open, the one side of CTS nozzles 22 passes through. When CTS nozzles 22 are by rubber bolt 23, by the recuperability of rubber, the section 508 of front tapering 504 and spray nozzle front end from Rubber is under pressure, but the front end of CTS nozzles 22 presses rubber, therefore the pressure dissipation from rubber to multiple directions.In addition, The direction of left and right two not only illustrated, by the curved surface in front tapering, even if arrow on the right side of figure is relative to the front, inner of paper Direction can also press rubber.Therefore, the general CTS nozzles 200 of frictional force ratio between section 508 and rubber bolt 23 are low, The generation of the chip of the rubber produced by the friction of the cutting face of CTS nozzles and rubber can be reduced.
In addition, the cutting face (504 and 508) by setting two sides in the front end of CTS nozzles 22, in insertion rubber bolt 23 When, the pressure being subject to from rubber is difficult to deviate, accordingly, it is capable to prevent from sideling inserting nozzle and being perpendicularly inserted rubber bolt 23. Especially because can veritably ensure the balance in the structure of leading section, therefore it can prevent from sideling inserting nozzle.In addition, by from The pressure dissipation that rubber is subject to, the section 508 of CTS nozzles 22 reduces the friction with rubber, suppresses the abrasion of section 508.
In addition, as described above, the shape that front tapering 504 is straight line in Fig. 8 sectional view is also important.Pass through Section 508 is that the front tapering 504 at the shape of straight line and the back side is also straight line, stable when spray nozzle front end is inserted, can be easily Ground makes rubber pressure equably disperse, and can prevent nozzle from sideling inserting.
Here, the shape to section 508 is illustrated.Section 508 (the first tapering) is to surround putting down for opening portion 507 Face.The opening portion 507 be relative to pipe sideling cut off formed by position, therefore be elliptical shape.If without front Tapering 504, then the periphery of section 508 sideling cut equalization wall thickness, be ellipticity therefore, but due to formed front cone Portion 504, section 508 is somewhat cut in the major diameter direction of opening portion 507.That is, the plane of section 508 is in opening portion 507 Major diameter direction, leading section Ce Bigen sides are short.Length in this is compared to the length in the plane of section 508, but i.e. Make in Fig. 6 (a) direction, the position of symbol 510 is also cut, be left the position of symbol 511, therefore length pass can be held System.In addition, in Fig. 5 (c), the width of section 508 of the wall thickness of root side is wide, therefore can also hold the relation.
In addition, the face of the dispersion effect, preferably front tapering 504 in order to suitably obtain rubber pressure as described above The area for the part that long-pending and as the section 508 of spray nozzle front end knife works is (in figure 6, before from nozzle center to nozzle The section 512 of the part, hereinafter referred to as spray nozzle front end at end 506) it is same degree.Because, suitably ensure to insert rubber The balance of rubber pressure shortly after glue bolt 23 can effectively prevent the oblique cutting of nozzle from entering.For example, it is desirable to by these area Difference suppresses in 0.1mm2Within.
In other words, using the minor axis of the elliptical shape of opening portion 507 as border, substantially concentration ellipse shape section 508 big enables are divided into two as root side and leading section side, expect in the divided area in leading section side and front tapering The difference of 504 area suppresses in 0.1mm2Within.Further, since the area of the root side of section 508 produces the inclined of rubber pressure Difference, but can be by inserting the nozzle into the depth of certain degree, and ignore the influence entered to the oblique cutting of nozzle.In addition, as described above, by It is curved surface in a circumferential direction in front tapering 504 (the second face), accordingly, it is capable to constitute width in the front end 506 of CTS nozzles 22 The knife of wide bending, can push open rubber with less, can ignore that accordingly, it is capable to which the influence that the oblique cutting to nozzle enters is suppressed to Degree.
Fig. 8 is the figure of the definition of the angle for the cutting portion for representing the CTS nozzles 22 of the present invention.The CTS nozzles 22 of the present invention As described above, there is the section 508 of front tapering 504 and spray nozzle front end in the part of spray nozzle front end 506, in CTS nozzles In 22 sectional view, the angle (inclination angle) between the center line of the straight line of cutting portion 508 and CTS nozzles 22 is defined as angle A (801), angle B is defined as by the angle (inclination angle) between the center line of the straight line in front tapering 504 and CTS nozzles 22 (802) toe angle of CTS nozzles 22, is defined as angle C (803).Angle C (803) is by angle A (801) and angle B (802) angle being added.In addition, the length from the front end of CTS nozzles 22 to the end of section 508 is defined as La (804), will be from The length at the front end of CTS nozzles 22 to the end in front tapering 504 (the second face) is defined as Lb (805).
The leading section 506 of CTS nozzles 22 is as described above, with pressing rubber, reduction is reduced to the pressure of section 504 The effect of the generation of chip, but there is the also influential factor in addition to the friction with section 504 in the generation of chip.Example Such as, the part that there is the calixconcavity 509 of the root side of the opening portion due to as the blocking of CTS nozzles 22 is acute angle and passed through Cutting rubber and produce the situation of chip, be that therefore cut-out performance is low and CTS nozzles 22 at obtuse angle due to the leading section of CTS nozzles 22 Leading section 506 press rubber while cut off and make otch it is coarse, so as to producing the situation of chip.That is, in the production of chip In life, angle A (801), angle C (803) also have relation.
Table 1 represents the CTS nozzles 22 manufactured using the combination for changing angle A (801) and angle B (802), in rubber bolt The generation rate of chip when being plugged in 23.
[table 1]
Can with fixed in the mechanism of constant speed (150mm/s) direct acting table 1 record each condition CTS nozzles 22, The sample container 24 of the state of the direction of advance fixing band rubber bolt 23 of CTS nozzles 22, with constant speed by CTS nozzles 22 in rubber Plugged in glue bolt 23, it is thus identified that whether there is the chip being attached on CTS nozzles 22.As it can be seen from table 1 before CTS nozzles 22 Hold in the condition that angle C (803) is 27.0 degree and 28.5 degree, the attachment of the chip without rubber.According to the result of table 1, manufacture Angle A (801) is 15.0 degree, angle B (802) is 12.5 degree, angle C (803) be 27.5 degree (angle A (801) is 15.0 degree, Angle B (802) be 12.5 degree) CTS nozzles 22, the result of the attachment of chip is plugged and confirmed in rubber bolt 23, Not with the attachment of the identical chip of condition 5 and 6 of table 1.
Result more than, expects the reduction relative to chip, and it is bigger than 25.5 degree and small to make toe angle C (803) In the angle of 30.0 degree of scope.Additionally, it is desirable to scope be contemplated to be the scopes of more than 26.0 degree and less than 29.5 degree.In addition, Desired scope is the scope of more than 26.5 degree and less than 29.0 degree, it more desirable to scope be more than 27.0 degree and less than 28.5 degree Scope.
Then, surface area is confirmed.When making angle A (801) change in 9.0~18.0 degree of scope, before nozzle The surface area of the section 512 at end is 0.39~0.97mm2(the small side's surface area of angle is big), exists making angle B (802) When 12.0~15.0 degree of scope changes, the surface area in front tapering 504 is 0.36~0.44mm2(the small one side of angle Surface area is small).As described above, the dispersion effect in order to suitably obtain rubber pressure, the He of section 512 of preferred nozzle front end The surface area in front tapering 504 is same degree, but toe angle C (803) is the cut-out performance of the rubber of a side of acute angle Height, therefore, according to the result of table 1, it is the scope less than 30.0 degree to expect toe angle C803.According to the result of the present invention, energy Toe angle C803 is adjusted by the adjustment of the section 512 of spray nozzle front end and the angle in front tapering 504.
If it is 15 degree to make angle A (801), the surface area of the section 512 of spray nozzle front end is 0.44mm2If making angle B (802) it is 12.5 degree, then is 0.38mm2, the surface area on two sides is identical, and the angle C of front end is 27.5 degree and less than 29.5 degree.Separately Outside, the difference of two areas is 0.06mm2.The difference is not limited, expect it is identical, but if being 0.1mm2Hereinafter, then the difference can allow for. Even if this is also to rely on the value of the wall thickness of CTS nozzles, therefore be the thickness to determining wall thickness due to not changing angle C (803) Effective index.
In addition, when CTS nozzles 22 are inserted into rubber, the decentralized effect of rubber is before front tapering 504 and nozzle The respective surface area of section 512 and angle at end are determined.It is therefore preferable that being angle A (801) and the close angle of angle B (802) Degree and section 512 and the close value of the surface area in front tapering 504.In order to meet condition as the above, front cone The position in portion 504 is located at the forward side in end of the root side of the opening portion 507 than nozzle, is Lb (805) values smaller than La (804). In addition, front tapering 504 is located in front end, the end of the root side in front tapering 504 is located in than opening portion 507 Elliptical center (intersection point of the ellipse and the central shaft of nozzle of opening portion) forward side.
In addition, in order to ensure the surface area in front tapering 504, expecting from the side of line part 502 to leading section 506 Distance 510 and distance 511 from the end of hollow bulb 505 to leading section 506 are selected in the mode bigger than distance 511 of distance 510 Select (reference picture 6 (a)).In addition, spray nozzle front end 506 is as described above, if wall thickness is thin, due to Reusability, generation is worn away, therefore It is preferred that making Lb (805) length short and ensuring wall thickness.According to the above, in the CTS nozzles 22 of the present invention, it is expected that Lb (805) compares La (804) is short, makes angle A (801) be 15.0 degree, makes angle B (802) be 12.0 degree less than 15.0 degree of scope.Cause This, as discussed above, it is desired to which angle A (801) is bigger than angle B (802).
In addition, the CTS nozzles for possessing above three characteristic point for example insert rubber relative to more than 90mm/s high speed The dispensing action of bolt 23 is particularly effective, additionally, it is desirable to be also equipped with the specific structure being illustrated in Figure 8.Because, in low speed In the case of, because the frictional force of rubber and nozzle is small, therefore, it is difficult to produce the problem of scrap gum.Additionally, it is desirable to In the case that 100mm/s is used above, with 150mm/s in the case of used above etc., the influence of the faster frictional force of speed it is bigger, Therefore, more preferable effect is obtained by used above with these speed.
In addition, in CTS nozzles 22, as shown in figure 5, it is expected that there is front tapering 504 in the leading section of CTS nozzles 22 (and section 512), line part 502, tapering 503, line part 501.Thus, rubber is cut off by the use of as the front end 506 of acute angle Glue, afterwards front tapering 504 and section 512 make rubber disperse, rubber is gently pushed in tapering 503 open.By by CTS nozzles 22 are mounted in sample dispensing mechanism 15, can reduce the chip of the rubber produced in the plug of rubber bolt 23, and can pass through suppression The front end of CTS nozzles 22 processed wears away and extends replacing construction.
In addition, in the micro dispensing of sample, also feelings with the drain sample in the state of making front end be contacted with box 28 Condition.Cut by using front tapering 504, the front end of chip surface 508 from the side of cutting face 508 is relatively more slow song Line (front end of reference picture 5 (c)).If the curve of front end delays, it can be connect in preceding end in contact in relatively wide scope and cassette bottom Touch, therefore CTS nozzles of the invention are suitable to the situation of the drain sample in the state of end in contact before making.If can be in wider model Enclose and contacted with cassette bottom, then can increase the liquid of discharge and the contact area of cassette bottom, can suitably prevent liquid as sample to The return of spray nozzle front end, can easily carry out the micro dispensing to cassette bottom.Therefore, as the structure of automatic analysing apparatus, possess Sample dispensing mechanism, when the sample dispensing mechanism expects that the sample in by CTS nozzles is discharged to box, makes bottom and cassette bottom Drain sample in the state of contact.
Then, the manufacture method to CTS nozzles is illustrated.
Fig. 9 is one of the method for the CTS nozzle forms of the manufacture present invention.The CTS nozzles 22 of the present invention and general CTS Nozzle 200 is identical, is processed to manufacture to metal pipe, and for example using the hollow tube of stainless steel, (internal diameter φ is 0.4mm).The rectilinear tubes 901 (Fig. 9 (a)) of hollow bulb 505 with straight line are single parts, are cut by using lathe etc. Machinery to rectilinear tubes 901 carry out machining 902, be formed at front tapering 504, front end line part 502, root tapering 503 with And root line part 501 (Fig. 9 (b), (c)).In addition, the processing makes pipe with axle central rotation while carrying out machining, because No matter this, be the shape in terms of which direction.On the front tapering 504, cone angle, face shape are determined by the processing. That is, it needs to consider the processing of second point and characteristic point thirdly.It is relative as the shape of the front end in the front tapering Bent in columnar circumferencial direction and relative to length direction point-blank inclined face.In addition, now due to one side rotation one Side carries out machining, therefore major part curved surface has the curved surface of a part for cone.
Then, by the shape relative to Fig. 9 (c), cutting off processing is carried out using cutting machine (such as laser machine) 903, the CTS nozzles 22 of the invention shown in Fig. 5 (a) can be manufactured.Herein, it is necessary to consider the processing of fisrt feature.That is, at this In cutting off processing 903, than front tapering 504 root side will be leaned on as cutting end part, the cutting end part of the opposing party is located at front In the way of the inclined plane in tapering.Spray nozzle front end 506 can be determined by the machining angle of machining 902 and cutting off processing 903 Position (510 and 511), the nose angle of spray nozzle front end 506.More than in such process, due to the shape in manufacture CTS nozzles 22 Processing is simple in terms of shape, therefore uneven few, and can be with low cost manufacture.In addition, can also regard root line part 501 as miscellaneous part Welding, but expect so to cut out manufacture from single part.
If the main points to Fig. 9 manufacturing process are said differently, as follows.First, prepare to have to prolong in the longitudinal direction The pipe for the hollow bulb stretched.Then, it is the curved surface of the axle control on the axle of pipe, is cut in the front end of pipe along columnar circumferencial direction Cut.Thus, formed and bent to circumferencial direction and relative to length direction point-blank inclined curved surface.In addition, so-called axle control Curved surface be cone bottom surface near curved surface a part, the cutting do not make hollow bulb bend in the state of carry out.Connect , the point and ratio by the use of on by the curved surface configure the root side (being used as root side during CTS nozzles) of the position tube of the curved surface Plane, the i.e. cutting line 903 of point is point-blank processed, and utilizes the face for surrounding hollow bulb and (plane) and the phase of the curved surface Intersection forms the leading section of above-mentioned sample nozzle.That is, leading section relative to the front end to pipe bore the shape of processing, by oblique It is processed on direction and removes a part and remaining part composition.
Additionally, it is desirable to cut curved surface process include formed the front tapering 502 smaller than root side 501 external diameters of line part, The process in the root side tapering 503 between these, cutting the process of the curved surface includes the work of front end of cutting front line part 502 Sequence.Additionally, it is desirable to as described above, it is preferred to carry out carrying out the part of the calixconcavity of section finishing processing (such as spray painting grinding Deng), therefore, including the acute angle part of the pipe to being clipped by the face and hollow bulb of encirclement hollow bulb carries out the process for repairing processing.
In addition, in the CTS nozzles of the present invention, there is desired shape in addition to features described above point, pass through regulation pair For forming the curved surface of leading section and the Working position of plane, machining angle, as long as those skilled in the art, then easily make The method made also can be specific.For example, being located at the position than the outside in wall thickness range close to opening portion side in the position of leading section In the case of, if adjust for form above-mentioned cutting face 508 machined surface contained by curved surface on point position.Separately Outside, in order that the angle of leading section is more than 26.0 degree and less than 29.5 degree, as long as adjusting the cone angle in each face.
Additionally, it is desirable to not be to be cut in other faces and turn into complicated shape in leading section, and make by curved surface peace It is preferred in terms of cost that this two sides of face, which forms this structure,.
Each size of the CTS nozzles 22 represented in embodiment is an example, and the length and material in tapering are to utilizing Minimizing effect, the abrasion inhibition of the chip of the rubber of the chip surface on the two sides of spray nozzle front end do not influence, and do not limit this The embodiment of invention.
Symbol description
10-automatic analysing apparatus, 11-reagent container, 12-reagent disc, 13-reaction tray, 14-reagent dispensing mechanism, 15-sample dispensing mechanism, 21-reagent nozzle, 22-CTS nozzles, 23-rubber bolt, 24-sample container, 25-sample Frame, 28-box, 200-general CTS nozzles, 201-cut surface, 202-opening portion, 203-hollow bulb, 204-leading section, 401-taper, 402-cut surface, 403-spray nozzle front end, 404-tapered end, 405-cut end, 501-root side line part, 502-front line part, 503-root side tapering, 504-front tapering, 505-hollow bulb, 506-spray nozzle front end (knife), 507-nozzle opening portion, the section of 508-spray nozzle front end, the calixconcavity in 509-nozzle opening portion, 510-from nozzle The distance of knife is arrived in side, 511-from nozzle opening portion end to the distance of knife, 512-section face from nozzle centerline to knife Product, 801-angle A, 802-angle B, 803-angle C, 804-length La, 805-length Lb, 901-hollow tube, 902- Lathe process line, 903-cutting line.

Claims (12)

1. a kind of sample nozzle, it is cylindrical shape, sampling container of the insertion with rubber and the sample for attracting inside, the sample nozzle It is characterised by possessing:
Including the hollow bulb for attracting the opening portion of sample and extending on the length direction of above-mentioned sample nozzle;
Positioned at the end for the pipe for being configured with above-mentioned hollow bulb and with the first face of the plane for surrounding above-mentioned opening portion;
Positioned at the second face of the opposite direction in above-mentioned first face;And
The leading section of the above-mentioned sample nozzle formed by the intersecting lens in above-mentioned first face and above-mentioned second face,
Above-mentioned hollow bulb is not bent near above-mentioned leading section, including above-mentioned opening portion,
The above-mentioned oriented above-mentioned columnar circumferencial direction bending of second mask, and it is point-blank inclined relative to above-mentioned length direction Curved surface,
The end of the root side of the above-mentioned sample nozzle in above-mentioned second face is more above-mentioned than above-mentioned first face with the distance of above-mentioned leading section The distance of the end and above-mentioned leading section of the root side of sample nozzle is short.
2. sample nozzle according to claim 1, it is characterised in that
The inclination angle in above-mentioned first face is bigger than the inclination angle in above-mentioned second face.
3. sample nozzle according to claim 1, it is characterised in that
When from above-mentioned opening portion side, above-mentioned leading section is located in the wall thickness range of above-mentioned sample nozzle, it is above-mentioned before End is located in the position close to above-mentioned opening portion side than the outside in above-mentioned wall thickness range.
4. sample nozzle according to claim 1, it is characterised in that
The above-mentioned opening portion in above-mentioned first tapering is elliptical shape, in the major diameter direction of above-mentioned elliptical shape, above-mentioned plane it is upper State leading section side shorter than above-mentioned side of above-mentioned plane.
5. sample nozzle according to claim 4, it is characterised in that
It is divided into by two in the above-mentioned plane of above-mentioned side and above-mentioned leading section side, quilt by border of the minor axis of above-mentioned elliptical shape The difference for being divided into the area of above-mentioned leading section side and the area in above-mentioned second face is 0.1mm2
6. sample nozzle according to claim 1, it is characterised in that
The angle of above-mentioned leading section is the scope of more than 26.0 degree and less than 29.5 degree.
7. sample nozzle according to claim 1, it is characterised in that
Possess first straight line portion, external diameter the second straight line portion smaller than above-mentioned first straight line portion and be configured at above-mentioned first straight line portion With the tapering between above-mentioned second straight line portion, above-mentioned leading section is configured at the front end in above-mentioned second straight line portion.
8. sample nozzle according to claim 7, it is characterised in that
Above-mentioned first straight line portion, above-mentioned second straight line portion, above-mentioned tapering and above-mentioned leading section are not welded to each other, are same portions Part.
9. a kind of automatic analysing apparatus, it possesses the sample dispensing mechanism of the sample nozzle described in claim 1, and this is automatic Analytical equipment is characterised by,
When sample in by above-mentioned sample nozzle is discharged to box, said sample dispensing mechanism makes above-mentioned leading section and above-mentioned box Bottom contact in the state of drain sample.
10. a kind of manufacture method of sample nozzle, it is sampling container of the insertion with rubber and attracts the cylinder of the sample of inside The manufacture method of the sample nozzle of shape, the manufacture method of the sample nozzle is characterised by,
With following processes:
(a) process of the pipe with the hollow bulb extended in the longitudinal direction is prepared;
(b) process for forming curved surface, the curved surface is the curved surface that axle is compareed on the axle of above-mentioned pipe, bends above-mentioned hollow bulb, Bend, point-blank tilted relative to above-mentioned length direction to above-mentioned columnar circumferencial direction in the front end of above-mentioned pipe;And
(c) point on by above-mentioned curved surface and more straight by the plane of the point of the root side of above-mentioned pipe than the position for being configured with above-mentioned curved surface It is processed line, the leading section of above-mentioned sample nozzle is formed using the face of above-mentioned hollow bulb and the intersecting lens of above-mentioned curved surface is surrounded Process.
11. the manufacture method of sample nozzle according to claim 10, it is characterised in that
Above-mentioned (b) process includes forming the external diameter second straight line portion smaller than first straight line portion, above-mentioned first straight line portion and above-mentioned the The process of curved surface in the process in the tapering between two line parts, cutting above-mentioned (b) process is the above-mentioned second straight line portion of cutting The process of front end.
12. the manufacture method of sample nozzle according to claim 10, it is characterised in that
Also there is following (d) process:
(d):The process that the acute angle part of the above-mentioned pipe clipped to the face and above-mentioned hollow bulb by surrounding above-mentioned hollow bulb is repaired.
CN201580066429.3A 2014-12-18 2015-12-07 Sample nozzle uses the automatic analysing apparatus of the sample nozzle and the manufacturing method of sample nozzle Active CN107003330B (en)

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CN110064453B (en) * 2018-01-24 2024-04-16 思纳福(苏州)生命科技有限公司 Micro-droplet generation device and generation method
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